If you like sports, that is one sports game a night. When I was in university we had 4 tv's and the ultimate cable package (a benefit of cramming 6 people into a tiny house, things like that become cheap) and a few roommates would commonly watch about 8 hours of tv per day.

However 'watching tv' was more doing school work on the couch with the odd bit of discussion about a good play.

90% of my 'tv watching' then was doing schoolwork.

Well I'm just using that as an example.